Jack Arnold Director David Janssen David Christopher Actor Senta Berger Denise Abbott Actor John Ireland Dwight McGowan Actor Elke Sommer Rita Jensen Actor John Saxon Robert Hayes Actor Ray Milland Johann Hurtil Actor Anton Diffring Franz Benninger Actor Arthur Brauss Kosta Actor Curt Lowens Korsak Actor David Hess Sando Actor Inigo Gallo Captain Frey Actor Sheila Ruskin Corinne Actor Irmgard Frost Florelle Actor Hansjörg Bahl Sgt. Schwand Actor Maurice Silverstein Producer Norman Klenman Screenwriter, Writer Horward Merrill Writer Philip Saltzman Screenwriter Norman Sedawie Writer Michael Stanley Screenwriter Raymond R. Homer Executive Producer Klaus Doldinger Original Music W. P. Hassenstein Cinematographer Murray Jordan Film Editor Rolf Zehetbauer Production Design Werner Achmann Art Director Ursula Sensburg Costume Design